Lighting fixture support arm



FIG. 1 is a top plan view of a lighting fixture support arm in accordance with a first embodiment of the present invention;

FIG. 2 is a left side view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a perspective view thereof showing the lighting fixture support arm supporting a light fixture mounted to a pole;

FIG. 7 is a top plan view of a lighting fixture support arm in accordance with a second embodiment of the present invention;

FIG. 8 is a left side view thereof;

FIG. 9 is a front view thereof;

FIG. 10 is a right side view thereof; and,

FIG. 11 is a bottom view thereof.

The broken lines are shown for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a lighting fixture support arm, as shown and described. 